Welcome! You are going to find bikes much more liberating once you get into the right mindset. It really taps the creative side of problem solving. Bars are easy enough, you can just drop on a set with a lower rise. Being you want to stay a 2 up bake, part time anyways, you may or may not want to go too short. Personal preference though.
You won't be doing 150 on this bike, or revving so high, but don't let it fool you. They still move out when tuned well.
A tank may be more trouble, but then they are on any bike, you just have to get creative with mounting it.
One thing you should do is drop cb900 cams into it. Gives the engine a nice little bump.
The ride IS the adventure. The destination is just to get gas!